399410874 has 12 divisors (see below), whose sum is σ = 865390266. Its totient is φ = 133136952.

The previous prime is 399410839. The next prime is 399410899. The reversal of 399410874 is 478014993.

It can be written as a sum of positive squares in only one way, i.e., 246270249 + 153140625 = 15693^2 + 12375^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11094729 + ... + 11094764.

Almost surely, 2^399410874 is an apocalyptic number.

399410874 is an abundant number, since it is smaller than the sum of its proper divisors (465979392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

399410874 is a wasteful number, since it uses less digits than its factorization.

399410874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22189501 (or 22189498 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 399410874 is about 19985.2664230428. The cubic root of 399410874 is about 736.4443955405. Note that the first 3 decimals are identical.

The spelling of 399410874 in words is "three hundred ninety-nine million, four hundred ten thousand, eight hundred seventy-four".